public class Interval {
	int start;
	int end;

	public Interval() {
		start = 0;
		end = 0;
	}

	public Interval(int s, int e) {
		start = s;
		end = e;
	}
	
	@Override
	public String toString() {
		return "[" + start + ", " + end + "]";
	}
}